Home / 13,459.60-20,189.40-9,741.70

Finding the Fourth Proportional to 13,459.60, 20,189.40 and 9,741.70

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Solution

The fourth proportional to 13,459.60, 20,189.40 and 9,741.70 is: 14,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.60 : 20,189.40 = 9,741.70 : x
  2. Step 2: Convert to fraction form
    13,459.60/20,189.40 = 9,741.70/x
  3. Step 3: Cross multiply
    13,459.60x = 20,189.40 × 9,741.70
  4. Step 4: Simplify right side
    13,459.60x = 196,679,077.98
  5. Step 5: Solve for x
    x = 196,679,077.98/13,459.60
  6. Step 6: Final answer
    x = 14,612.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.